P. Güerere Pereira

Hospital Universitario de Maracaibo

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Osmar Quijada

University of Zulia

ÁC

Ángel Casanova

University of Zulia

Ramón Kuri Camacho

Universidad Autónoma de Zacatecas "Francisco García Salinas"

Glady Castellano

Instituto Nacional de Investigaciones Agricolas

Jesus Camacho Molina

University of Zulia

M. Q. de González

Temuco Catholic University

Cooperative Institutions

University of Zulia

Instituto Nacional de Investigaciones Agricolas

Hospital Universitario de Maracaibo

Instituto de Investigaciones Avícolas

Universidad Autónoma de Zacatecas "Francisco García Salinas"

Universidad Veracruzana

Instituto de Filosofía

Benemérita Universidad Autónoma de Puebla

Universidad de Los Andes

Temuco Catholic University

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Insectos y Ácaros del guayabo (Psidium guajava L.) en plantaciones comerciales del estado Zulia, Venezuela

Revista de la Facultad de Agronomía (2002)

Jesus Camacho Molina P. Güerere Pereira M. Q. de González

Se reconocieron taxonomicamente los insectos y los acaros del guayabo, Psidium guajava L., en plantaciones comerciales de los municipios Mara, Paez, La Canada de Urdaneta, Jesus Enrique Lossada, Miranda y Sucre del estado Zulia, Venezuela, de marzo de 2000 a julio de 2001. Los especimenes se capturaron con redes entomologicas, succionadores y frascos con acetato de etilo, luego se identificaron y preservaron en el Museo de Artropodos de La Universidad del Zulia (MALUZ). Hojas, flores, frutos y ramas con los insectos inmaduros y acaros fueron traidos al laboratorio para cria y observacion. Se identificaron 47 especies de insectos y 8 de acaros, de los cuales 29 son nuevos reportes para la zona de estudio y 25 para Venezuela. Se encontraron 44 especies fitofagas, 10 depredadoras y 1 parasitoide. Las especies fitofagas mas comunes fueron: Anastrepha striata Schiner, A. obliqua Macquart, A. fraterculus (Wiedemann) (Diptera: Tephritidae); Capulinia sp. cercana a jaboticabae von Ihering (Homoptera: Eriococcidae); Veneza zonata (Pallas), Fabrictilis gonagra (Fabricius) (Hemiptera: Coreidae); Liothrips similis Bagnall (Thysanoptera: Phlaeothripidae); Selenothrips rubrocinctus (Giard) (Thysanoptera: Thripidae) y Brevipalpus phoenicis (Geijskes) (Prostigmata: Tenuipalpidae). Los depredadores mas comunes fueron 8 especies de la familia Coccinellidae, una chinche de la familia Anthocoridae y Chrysoperla sp. (Neuroptera: Chrysopidae).

Tenuipalpidae

Coreidae

Aphelinidae

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Evaluación del raleo de frutos malformados e inducción floral sobre el rendimiento y la calidad en el cultivo de mango (Mangifera indica L.), variedad Irwin en la planicie de Maracaibo, estado Zulia, Venezuela

Revista Científica UDO Agrícola (2012)

Osmar Quijada Glady Castellano Ángel Casanova P. Güerere Pereira Ramón Kuri Camacho

Irwin mango variety gives high production under the Maracaibo´s plain agroclimatic conditions, but the fruits have some malformation attributed to a physiological factor not known, there so far there is no effective treatment to prevent it or treat it, limits the performance of the plant. In this sense, argue the use of management techniques agronomic in order to reduce the percentage of malformed fruits and produce quality fruit in optimal conditions. The study was conducted at the Socialist's Research Centre and Developing Fruit and Apiculture (CORPOZULIA) of Zulia state, located in the Northwest of the State of Zulia, characterized as very dry tropical forest. Trees were selected Irwin variety range of 11-year-old, planted in a framework 10 m x 10 m. The treatments applied were: fruits thinning + KNO3 8% (T1) non fruits thinning + KNO3 8% (T2) non floral induction + fruits thinning (T3) and no thinning fruits, no floral induction (T4). Variables evaluated were % of malformed fruits, number and weight of fruits per plant, average fruit weight, yield index and production efficiency and characteristics of physicochemical quality of the fruit. The results showed that fruit thinning reduced the number of malformed fruits in the variety of mango Irwin. Potassium nitrate increased fruit yield per plant and animal performance, but the highest values were achieved when combined with the thinning of fruit. The fruit thinning increased average fruit weight and percentage of fruit pulp and decreased the percentages of shell and seed. Thinning of fruits and Potassium nitrate did not greatly affect the chemical characteristics of the fruit, only degrees Brix, were affected. The results indicate that the practices of thinning of fruit and floral induction can improve performance and quality of fruit.

Mangifera

Thinning

Anacardium

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